remove unused backend machinery

The only remaining vestiage of backends is different types of keys. These
are still called "backends", mostly to avoid needing to change user interface
and configuration. But everything to do with storing keys in different
backends was gone; instead different types of remotes are used.

In the refactoring, lots of code was moved out of odd corners like
Backend.File, to closer to where it's used, like Command.Drop and
Command.Fsck. Quite a lot of dead code was removed. Several data structures
became simpler, which may result in better runtime efficiency. There should
be no user-visible changes.
This commit is contained in:
Joey Hess 2011-07-05 18:31:46 -04:00
parent 674768abac
commit 9f1577f746
25 changed files with 308 additions and 445 deletions

View file

@ -25,6 +25,7 @@ import DataUnits
import Content
import Types.Key
import Locations
import Backend
-- a named computation that produces a statistic
type Stat = StatState (Maybe (String, StatState String))
@ -95,9 +96,8 @@ showStat s = calc =<< s
calc Nothing = return ()
supported_backends :: Stat
supported_backends = stat "supported backends" $
lift (Annex.getState Annex.supportedBackends) >>=
return . unwords . (map B.name)
supported_backends = stat "supported backends" $
return $ unwords $ map B.name Backend.list
supported_remote_types :: Stat
supported_remote_types = stat "supported remote types" $